LT1081
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LT1081

Advanced Low Power 5V RS232 Dual Driver/Receiver

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Part Models 6
1ku List Price Starting From $3.41
Features
  • Superior to CMOS
    • Improved Speed: Operates over 120kBaud
    • Improved Protection: Outputs Can Be Forced to ±30V
  • Absolutely No Latchup
  • CMOS Comparable Low Power: 60mW
  • Can Power Additional RS232 Drivers: 10mA
  • Supply Current in Shutdown: 1µA
  • Available in SO Package
  • Available with or without Shutdown
Additional Details
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The LT1080/LT1081 are the only dual RS232 driver/receiver with charge pump to guarantee absolutely no latchup. These interface optimized devices provide a realistic balance between CMOS levels of power dissipation and real world requirements for ruggedness. The driver outputs are fully protected against overload and can be shorted to ±30V. Unlike CMOS, the advanced architecture of the LT1080/LT1081 does not load the signal line when “shut down” or when power is off. Both the receiver and RS232 outputs are put into a high impedance state. An advanced output stage allows driving higher capacitive loads at higher speeds with exceptional ruggedness against ESD.

For applications requiring up to five drivers and five receivers with charge pump in one package see the LT1130A Series data sheet. A version of the LT1080/LT1081, the LT1180A and LT1181A that use only 0.1µF capacitors, is also available. All of Linear Technology’s RS232 ICs are available in standard surface mount packages.

Applications

  • Portable Computers
  • Battery-Powered RS232 Systems
  • Power Supply Generator
  • Terminals
  • Modems
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Part Models 6
1ku List Price Starting From $3.41
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LT1081

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Data Sheet

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UPDATED 08/29/2007
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LT1080/LT1081: Advanced Low Power 5V RS232 Dual Driver/Receiver Data Sheet

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Reliability Data

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UPDATED 03/23/2018
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R001 Reliability Data redirect icon

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Design Note

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UPDATED 11/01/1987
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Design Note 4: New Developments in RS232 Interface redirect icon

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UPDATED 08/01/1988
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Design Note 14: Extending the Applications of 5V Powered RS232 Transceivers redirect icon

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Documentation

Product Selection Guide 1

Digital Isolation and Interface Technology Selection Guide

Product Selector Card 2

RS232 Quick Guide
LTM2882 - Isolated RS232 + 1W Power

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2020-10-28

01:00

Protect your Innovations: from High Precision to High Power

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1081CN#PBF 16-Lead PDIP (Narrow 0.30 Inch) external-link
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  • Material Declaration external-link
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LT1081CSW#PBF 16-Lead SOIC (Wide 0.3 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1081CSW#TRPBF 16-Lead SOIC (Wide 0.3 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1081IN#PBF 16-Lead PDIP (Narrow 0.30 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1081ISW#PBF 16-Lead SOIC (Wide 0.3 Inch) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1081ISW#TRPBF 16-Lead SOIC (Wide 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
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  • Reliablity Data external-link

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Product Lifecycle

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Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1081CN#PBF

PRODUCTION

LT1081IN#PBF

PRODUCTION

pdf

PCN22_0241_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1081CN#PBF

PRODUCTION

LT1081IN#PBF

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PCN22_0172_Form

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Material_Report

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Delta Qualification Matrix

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Aug 10, 2022

- 22_0176

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1081CSW#PBF

PRODUCTION

LT1081CSW#TRPBF

PRODUCTION

LT1081ISW#PBF

PRODUCTION

LT1081ISW#TRPBF

PRODUCTION

pdf

PCN22_0176_Form

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xls

Material_Report

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Delta Qualification Matrix

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1081CN#PBF

PRODUCTION

LT1081IN#PBF

PRODUCTION

pdf

PCN22_0241_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon
Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1081CN#PBF

PRODUCTION

LT1081IN#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Aug 10, 2022

- 22_0176

arrow down

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1081CSW#PBF

PRODUCTION

LT1081CSW#TRPBF

PRODUCTION

LT1081ISW#PBF

PRODUCTION

LT1081ISW#TRPBF

PRODUCTION

pdf

PCN22_0176_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Software & Part Ecosystem

Parts Product Life Cycle Description

Isolated RS-2321
LTM2882
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Dual Isolated RS232 μModule Transceiver + Power

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